Paging on a Datagrid added from code behind C#

[maya123]

I am using datagrid control
My code goes here

System.Web.UI.WebControls.DataGrid DataGrid1 = new System.Web.UI.WebControls.DataGrid();
private void CreateGrid()
{
DataGrid1.PageIndexChanged += new DataGridPageChangedEventHandler(dgRt_PageIndexChan ged);
DataGrid1.AllowPaging = true;
DataGrid1.PageSize = 5;
DataGrid1.DataSource = dt;//I binded my datasource here
DataGrid1.DataBind();
Form.Controls.Add(DataGrid1);
}
private void dgRt_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEvent Args e)
{
DataGrid1.CurrentPageIndex = e.NewPageIndex;
DataGrid1.DataBind();
}

I have only 5 rows when i run the code with < > buttons but my page number is missing.
How to add paging on dynamic datagrid
Please help
Thanks in Advance